diff --git a/program_info/win_install.nsi b/program_info/win_install.nsi
index 18a1b64e..ce13b8b0 100644
--- a/program_info/win_install.nsi
+++ b/program_info/win_install.nsi
@@ -1,6 +1,8 @@
 !include "FileFunc.nsh"
 !include "MUI2.nsh"
 
+Unicode true
+
 Name "PolyMC"
 InstallDir "$LOCALAPPDATA\PolyMC"
 InstallDirRegKey HKCU "Software\PolyMC" "InstallDir"
@@ -26,6 +28,72 @@ RequestExecutionLevel user
 ; Languages
 
 !insertmacro MUI_LANGUAGE "English"
+!insertmacro MUI_LANGUAGE "French"
+!insertmacro MUI_LANGUAGE "German"
+!insertmacro MUI_LANGUAGE "Spanish"
+!insertmacro MUI_LANGUAGE "SpanishInternational"
+!insertmacro MUI_LANGUAGE "SimpChinese"
+!insertmacro MUI_LANGUAGE "TradChinese"
+!insertmacro MUI_LANGUAGE "Japanese"
+!insertmacro MUI_LANGUAGE "Korean"
+!insertmacro MUI_LANGUAGE "Italian"
+!insertmacro MUI_LANGUAGE "Dutch"
+!insertmacro MUI_LANGUAGE "Danish"
+!insertmacro MUI_LANGUAGE "Swedish"
+!insertmacro MUI_LANGUAGE "Norwegian"
+!insertmacro MUI_LANGUAGE "NorwegianNynorsk"
+!insertmacro MUI_LANGUAGE "Finnish"
+!insertmacro MUI_LANGUAGE "Greek"
+!insertmacro MUI_LANGUAGE "Russian"
+!insertmacro MUI_LANGUAGE "Portuguese"
+!insertmacro MUI_LANGUAGE "PortugueseBR"
+!insertmacro MUI_LANGUAGE "Polish"
+!insertmacro MUI_LANGUAGE "Ukrainian"
+!insertmacro MUI_LANGUAGE "Czech"
+!insertmacro MUI_LANGUAGE "Slovak"
+!insertmacro MUI_LANGUAGE "Croatian"
+!insertmacro MUI_LANGUAGE "Bulgarian"
+!insertmacro MUI_LANGUAGE "Hungarian"
+!insertmacro MUI_LANGUAGE "Thai"
+!insertmacro MUI_LANGUAGE "Romanian"
+!insertmacro MUI_LANGUAGE "Latvian"
+!insertmacro MUI_LANGUAGE "Macedonian"
+!insertmacro MUI_LANGUAGE "Estonian"
+!insertmacro MUI_LANGUAGE "Turkish"
+!insertmacro MUI_LANGUAGE "Lithuanian"
+!insertmacro MUI_LANGUAGE "Slovenian"
+!insertmacro MUI_LANGUAGE "Serbian"
+!insertmacro MUI_LANGUAGE "SerbianLatin"
+!insertmacro MUI_LANGUAGE "Arabic"
+!insertmacro MUI_LANGUAGE "Farsi"
+!insertmacro MUI_LANGUAGE "Hebrew"
+!insertmacro MUI_LANGUAGE "Indonesian"
+!insertmacro MUI_LANGUAGE "Mongolian"
+!insertmacro MUI_LANGUAGE "Luxembourgish"
+!insertmacro MUI_LANGUAGE "Albanian"
+!insertmacro MUI_LANGUAGE "Breton"
+!insertmacro MUI_LANGUAGE "Belarusian"
+!insertmacro MUI_LANGUAGE "Icelandic"
+!insertmacro MUI_LANGUAGE "Malay"
+!insertmacro MUI_LANGUAGE "Bosnian"
+!insertmacro MUI_LANGUAGE "Kurdish"
+!insertmacro MUI_LANGUAGE "Irish"
+!insertmacro MUI_LANGUAGE "Uzbek"
+!insertmacro MUI_LANGUAGE "Galician"
+!insertmacro MUI_LANGUAGE "Afrikaans"
+!insertmacro MUI_LANGUAGE "Catalan"
+!insertmacro MUI_LANGUAGE "Esperanto"
+!insertmacro MUI_LANGUAGE "Asturian"
+!insertmacro MUI_LANGUAGE "Basque"
+!insertmacro MUI_LANGUAGE "Pashto"
+!insertmacro MUI_LANGUAGE "ScotsGaelic"
+!insertmacro MUI_LANGUAGE "Georgian"
+!insertmacro MUI_LANGUAGE "Vietnamese"
+!insertmacro MUI_LANGUAGE "Welsh"
+!insertmacro MUI_LANGUAGE "Armenian"
+!insertmacro MUI_LANGUAGE "Corsican"
+!insertmacro MUI_LANGUAGE "Tatar"
+!insertmacro MUI_LANGUAGE "Hindi"
 
 ;--------------------------------